package com.chinasofti.sbuilder;

public class Demo01 {
    public static void main(String[] args) {
        StringBuilder sb = new StringBuilder();
        System.out.println("sb="+sb);
        System.out.println("sb length"+sb.length());

        StringBuilder sb2 = new StringBuilder("Hello");
        System.out.println("sb2="+sb2);
        System.out.println("sb2 length"+sb2.length());
    }
}
